Home / 127,032-190,555.98-42,785.28

Finding the Fourth Proportional to 127,032, 190,555.98 and 42,785.28

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Solution

The fourth proportional to 127,032, 190,555.98 and 42,785.28 is: 64,180.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,032 : 190,555.98 = 42,785.28 : x
  2. Step 2: Convert to fraction form
    127,032/190,555.98 = 42,785.28/x
  3. Step 3: Cross multiply
    127,032x = 190,555.98 × 42,785.28
  4. Step 4: Simplify right side
    127,032x = 8,152,990,959.97
  5. Step 5: Solve for x
    x = 8,152,990,959.97/127,032
  6. Step 6: Final answer
    x = 64,180.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.